MN1382SUP Integrated Circuits (ICs)

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Type:	Simple Reset/Power-On Reset
Number of Voltages Monitored:	1
Output:	Push-Pull, Totem Pole
Reset:	Active High
Reset Timeout:	15 µs Typical
Voltage - Threshold:	4.6V
Operating Temperature:	-20°C ~ 70°C (TA)
Mounting Type:	Surface Mount
Package / Case:	TO-236-3, SC-59, SOT-23-3
Supplier Device Package:	MINI-3DC
Base Part Number:	MN138*

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MN1382SUP Application Field and Working Principle

PMIC, also known as Power Management Integrated Circuits, are essential components in modern electronics. By regulating, monitoring, and controlling power in a variety of applications such as mobile phones, computers, and medical devices, PMICs help enable efficient, reliable, and safe operation of electronic systems. The MN1382SUP is a low power supply voltage supervisor IC from Matsushita, with wide operation voltage range, accurately detects and protect the power on and power off status of system power supply. It helps prevent potential delivery problems such as unintentional supply failure and system instability caused by a sudden power failure.

Application Fields

The MN1382SUP is primarily used as a system protection IC, preventing potential delivery problems caused by a sudden power failure. It\'s widely used in all kinds of mobile terminals, computers and automotive products.

• Mobile phones: mobile phones require stable power supply. The MN1382SUP adds an extra layer of protection to the power circuit, ensuring reliable operation of the mobile phone.
• Computers: The MN1382SUP supervises the power supply for desktop and laptop computers, protecting the computers from potential power failures.
• Automotive products: As automotive products have strict requirements in quality and safety, the MN1382SUP serves as a safeguard, preventing power failure and ensuring the system operates stably and safely.

Working Principle

The primary function of the MN1382SUP is to monitor the power supply and detect any power disruptions. The principle of operation is quite simple:First, a power supply voltage supervisor IC like the MN1382SUP has a delay circuit built in to detect the reset of the input voltage. This delay circuit ensures even if the power supply\'s voltage drops, the supervisor IC still identifies the power supply is normal, providing a stable voltage output. If the power supply fails, the supervisor IC will quickly detect it, resulting in a reset output.When the power supply voltage is normal, the reset output of the MN1382SUP will be in the low level state. As long as the power supply voltage is over the upper threshold for a certain period of time, the reset output will be in the high level state.

Conclusion

The MN1382SUP is an essential power management IC, preventing potential delivery problems of mobile phones, computers, and automotive products. Its built-in delay circuit ensures even if the power supply fails suddenly the MN1382SUP can quickly detect it and reset the system, ensuring stable and safe operation of the system.

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